So I have done a search and have read about using different oils. I know Royal Purple is not LL-01 or LL-04 approved. But I have been using 5w40 in my s4 for years and had no problems. I was just wondering can I use 5w40 instead of 5w30. I live in Socal and as everyone knows it can get really hot here so I wanted to use a thicker oil for the spirited driving I do when its 100
+ here. TIA

For our "break in" oil change i did some research about "other than BMW" oils. not allot out there that is LL-04 compliant. 0w-30 by Castrol Syntec is LL-01 and that is what is used in 330i engines. dont really see to much differance other than additive levels from -01 to -04. -04 has less additives.

For our "break in" oil change i did some research about "other than BMW" oils. not allot out there that is LL-04 compliant. 0w-30 by Castrol Syntec is LL-01 and that is what is used in 330i engines. dont really see to much differance other than additive levels from -01 to -04. -04 has less additives.

I read that LL-04 is meant for turbo diesel engines in Europe but can be used on gas engines as well.

a liitle off topic, but i just did an oil change yesterday,that B.S. that they tell me at the stealership that these cars can go for 15,000miles with no oil change..no way, i looked at the oil that i drained and compared to the new, that oil was black and thik, comparing to liquid yellowish....and that was after 5,000miles...also a big diffrence in driving, the engine feels so smooth under heavy accelaration and normal driving big diffrence.....i used mobil1 high performance full synthetic 5w30 from walmart good shit